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Bug 348749

Summary:	org.eclipse.xtext.validation.CompositeEValidator - Error executing EValidator
Product:	[Modeling] TMF	Reporter:	Serano Colameo <serano.colameo>
Component:	Xtext	Assignee:	Project Inbox <tmf.xtext-inbox>
Status:	CLOSED FIXED	QA Contact:
Severity:	normal
Priority:	P3	CC:	sebastian.zarnekow
Version:	2.0.0	Flags:	sebastian.zarnekow: indigo+
Target Milestone:	SR1
Hardware:	PC
OS:	Windows XP
Whiteboard:

Description Serano Colameo

2011-06-08 10:18:44 EDT

Build Identifier: 

java.lang.RuntimeException: java.lang.ClassCastException: org.eclipse.emf.ecore.impl.EClassImpl cannot be cast to org.eclipse.emf.ecore.EEnum
	at org.eclipse.xtext.validation.AbstractDeclarativeValidator$MethodWrapper.invoke(AbstractDeclarativeValidator.java:122)
	at org.eclipse.xtext.validation.AbstractDeclarativeValidator.internalValidate(AbstractDeclarativeValidator.java:288)
	at org.eclipse.xtext.validation.AbstractInjectableValidator.validate(AbstractInjectableValidator.java:62)
	at org.eclipse.xtext.validation.CompositeEValidator.validate(CompositeEValidator.java:126)
	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:165)
	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:143)
	at org.eclipse.xtext.validation.CancelableDiagnostician.validate(CancelableDiagnostician.java:36)
	at org.eclipse.emf.ecore.util.Diagnostician.doValidateContents(Diagnostician.java:184)
	at org.eclipse.xtext.validation.CancelableDiagnostician.doValidateContents(CancelableDiagnostician.java:48)
	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:168)
	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:143)
	at org.eclipse.xtext.validation.CancelableDiagnostician.validate(CancelableDiagnostician.java:36)
	at org.eclipse.emf.ecore.util.Diagnostician.doValidateContents(Diagnostician.java:184)
	at org.eclipse.xtext.validation.CancelableDiagnostician.doValidateContents(CancelableDiagnostician.java:48)
	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:168)
	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:143)
	at org.eclipse.xtext.validation.CancelableDiagnostician.validate(CancelableDiagnostician.java:36)
	at org.eclipse.emf.ecore.util.Diagnostician.doValidateContents(Diagnostician.java:184)
	at org.eclipse.xtext.validation.CancelableDiagnostician.doValidateContents(CancelableDiagnostician.java:48)
	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:168)
	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:143)
	at org.eclipse.xtext.validation.CancelableDiagnostician.validate(CancelableDiagnostician.java:36)
	at org.eclipse.emf.ecore.util.Diagnostician.validate(Diagnostician.java:126)
	at org.eclipse.xtext.validation.ResourceValidatorImpl.validate(ResourceValidatorImpl.java:108)
	at org.eclipse.xtext.ui.editor.validation.ValidationJob$1.exec(ValidationJob.java:79)
	at org.eclipse.xtext.ui.editor.validation.ValidationJob$1.exec(ValidationJob.java:1)
	at org.eclipse.xtext.util.concurrent.AbstractReadWriteAcces.readOnly(AbstractReadWriteAcces.java:32)
	at org.eclipse.xtext.ui.editor.model.XtextDocument.readOnly(XtextDocument.java:86)
	at org.eclipse.xtext.ui.editor.validation.ValidationJob.createIssues(ValidationJob.java:75)
	at org.eclipse.xtext.ui.editor.validation.ValidationJob.run(ValidationJob.java:64)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)
Caused by: java.lang.ClassCastException: org.eclipse.emf.ecore.impl.EClassImpl cannot be cast to org.eclipse.emf.ecore.EEnum
	at org.eclipse.xtext.xtext.XtextValidator.checkGeneratedEnumIsValid(XtextValidator.java:902)
	at sun.reflect.GeneratedMethodAccessor72.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at java.lang.reflect.Method.invoke(Method.java:597)
	at org.eclipse.xtext.validation.AbstractDeclarativeValidator$MethodWrapper.invoke(AbstractDeclarativeValidator.java:106)
	... 30 more


Reproducible: Always

Steps to Reproduce:
1. the xtext grammar editor is very slow when there is an error in the xtext file
2. after a while the exception (see details) appears in the error log view
3.

Comment 1 Serano Colameo

2011-06-08 10:21:02 EDT

build => Xtext 2.0.0.v201106050907

Comment 2 Sebastian Zarnekow

2011-06-08 12:10:00 EDT

It's unlikely that the CCE has something to do with the sluggish editor experience. Could you create a profiling snapshot as soon as it happens again? Is it reproducable with a certain error pattern in the grammar?

Comment 3 Sebastian Zarnekow

2011-06-14 08:40:50 EDT

Pushed to master.

Comment 4 Karsten Thoms

2017-09-19 18:06:18 EDT

Closing all bugs that were set to RESOLVED before Neon.0

Comment 5 Karsten Thoms

2017-09-19 18:16:07 EDT

Closing all bugs that were set to RESOLVED before Neon.0